Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: TDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended U-T11GPC-2S Unity 2/TD-100 Cold Trap carbon C4/5-C30/32 Price on request 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request TDLC-S Repalcement septum for Tedlar bag TDLC31Z Price on request